Climatological Report (Daily)
Issued by NWS
Issued by NWS
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534
CDUS46 KMTR 210036
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
536 PM PDT THU AUG 20 2026
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 20 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 69 2:25 PM 89 2023 74 -5 82
MINIMUM 56 5:28 AM 47 1955 57 -1 57
AVERAGE 63 65 -2 70
PRECIPITATION (IN)
TODAY 0.00 0.04 1997 0.00 0.00 0.00
MONTH TO DATE 0.03 0.02 0.01 T
SINCE OCT 1 19.62 19.55 0.07 16.11
SINCE JAN 1 10.77 12.58 -1.81 7.55
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 2 1 1 0
MONTH TO DATE 12 30 -18 17
SINCE JUN 1 122 185 -63 229
SINCE JUL 1 62 88 -26 86
COOLING
TODAY 0 1 -1 5
MONTH TO DATE 11 20 -9 17
SINCE JUN 1 63 69 -6 19
SINCE JAN 1 106 89 17 25
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 14.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 12:00 AM
LOWEST 65 1:00 PM
AVERAGE 79
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 85 1974
MINIMUM TEMPERATURE (F) 57 48 1952
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:30 AM PDT SUNSET 7:55 PM PDT
AUGUST 21 2026........SUNRISE 6:31 AM PDT SUNSET 7:54 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$